Apparatus for creating draft through furnaces of locomotive-boilers.



No. 863,166. PATENTED 001:. 31, 1905..

A G. HUGHES.

APPARATUS FOR CREATING DRAFT THROUGH FURNACES 0F LOCOMOTIVE BOILERS.

APPLICATION FILED SEPT.29.1904.

3 SHEETS-SHEET 1.

A M 11; Q

F/GJI F/GZ.

WITNESSES. A INVENTUR 6.30 J I AMXM No. 803,166. PATENTED OCT. 31, 1905.

G. HUG-HES. APPARATUS FOR CREATING DRAFT THROUGH FURNACES OF LOCOMOTIVE BOILERS.

APPLICATION nun) ssmzo, 1904. 3 SHEBTS SHEET 2.

WITNESSES. NVENTOR M 56.4 1 57 1 i/y ww. Z QWM PATBNTED OCT. 31, 1905. G. HUGHES. APPARATUS FOR CREATING DRAFT THROUGH FURNAGES 0F LOGOMOTIVE BOILERS.

APPLIUATION FILED SEPT. 29, 1904.

3 SHEETS-SHEBT 3.

FIG-4.

WITNESSES.

INVENTOR nrrnn STATES PATENT OFFICE.

Specification of Letters Patent.

Patented Oct. 31, 1.905.

Application filed September 29, 1904. Serial No. 226,574.

To all whom, it may concern:

Be it known that I, GEORGE HUGI-IEs, a

British subject, and a resident of Bolton,

county of Lancaster, England, have invented certain new and useful Improvements in Apparatus for Creating Draft Through F urnaces of Locomotive-Boilers, of which the following is a specification. 4 X

This invention relates to apparatus for producing a draft through the fire-box and tubes of locomotive-boilers during the initial stages of firing for the purpose of raising steam therein while the locomotive-engine is in the engine-shed.

The invention will be fully described with reference to the accompanying drawings.

Figure 1 is a diagrammatic longitudinal section of locomotive-shed, showing the apparatus as arranged for locomotive-engines therein with engine in position; Fig. 2, plan of the apparatus illustrated in Fig. 1; Fig. 3, enlarged transverse section of part of the apparatus, showing details for connecting with the locomotive smokes-tack; Fig. 4, side elevation of same, partly in section, with the parts in position on the locomotive smokestack.

As applied to a locomotive-shed or other structure in which locomotive or other portable engines are housed a smoke shaft or conduit A is placed to extend along the ordinary smoke-trough with openings or apertures therein at intervals to accommodate the 10-.

comotive smoke-stacks D. At each aperture a down piece or tube B is-attached to the conduit, with an adjustable sliding or ex tension tube B at its outer end to connect the smoke-stack D with the interior of the conduit A. The adjustable tube B is supported by or hun upon chains or wire ropes B passing over the pulleys B in brackets B and counterbalanced at the other end with weights B or springs, &c., the weight being preferably heavier than the tube. A valve or shutter C is formed at the lower end of the adjustable sliding tube B, which will fall by gravity when not engaged with the locomotive smoke-stack D to close the end of the tube. The lower end of the tube B is enlarged and provided with an annular plate or internal flange E, the opening 0 in the plate being equivalent to the area of the tube. The annular flange E forms a seating for the valve C. The valve comprises a disk or shutter C and annular plate or ring F, connected by studs or pins The disk or shutter C rests upon the annular flange E and closes the opening 6 therein. The ring F when the tube B is drawn down rests upon the top of the locomotive smoke-stack D and pushes the valve or shutter C upward, forming a passage round it for air and products of combustion to enter the tube B and pass to the smoke-conduit A.

To the outside of the adjustable sliding tube B one, two, or more catches G are pivoted to engage the top of the smoke-stack D and hold the tube in contact therewith while the draft is being applied thereto. The catches G are supported in the brackets H and held in engagement with the flange of the smoke-stack top D by springs J.

At one end of the shed or in any convenient position upon the smoke shaft or con-.

duit A a fan or air-propeller K is'fitted to induce a draft through the conduit A, and a chimney or funnel L is provided to discharge the products of combustion. The fan or airpropeller K may be of any known make or construction and is preferably driven by an electric motor M, or it may be driven by a belt or otherwise.

What I claim as my invention, and desire to protect by Letters Patent, is

1. Apparatus for creatin draft through the furnaces of locomotiveoilers comprising in its construction a smoke-conduit provided with an inlet-aperture, a depending tube covering the aperture, a sliding extension on said tube to connect it with the top of a locomotive smoke-stack and a valve for governing the flow of gases through said tube and extension, said valve being held in a closed position when said extension is out of action but opened through the instrumentality of the locomotive smoke-stack when said extension is brought into operative relation with respect thereto, substantially as described.

2. Apparatus for creating draft through the furnaces of locomotive-boilers comprising in its construction a smoke-conduit extending any desired length, provided with a plurality of apertures at intervals, downwardly-extending tubes attached to the conduit covering the apertures, sliding extension-tubes fitted to the fixed tubes to connect same with the locomotive smoke-stack and valves for governing the flow of gases through the said tubes and extensions, the said valves being held in a closed position when the said extensions are out of action either valve be.-

ing opened through the instrumentality of the locomotive smoke-stack when the extension in which such valve is placed is brought into operative relation in respect thereto substantially as described.

3. Apparatus for creatin draft through the furnaces of locomotive-ioilers comprising in its construction a smoke-conduit extending any desired length, provided with a plurality of apertures at intervals, downwardly-extending tubes attached to the conduit covering the apertures, sliding extension-tubes fitted to the fixed tubes to connect same with the locomotive smoke-stack, valves for governing the flow of gases through the said tubes and extensions, the said valves being held in a closed position when the said extensions are out of action either valve being opened through the instrumentality of the locomotive smoke-stack when the extension in which such valve is placed is brought into operative relation in respect thereto and means for inducing a draft therethrough substantially as described.

4. Apparatus for creatin draft through the furnaces of locomotiveoilers comprising in its construction a smoke-conduit provided with an inlet-aperture, a depending tube covering the aperture, a sliding extension on said tube to connect it with the top of a locomotive smoke-stack and a valve for governing the flow of gases through said tube and extension, said valve being held in a closed position when said extension is out of action but opened through the instrumentality of the locomotive smoke-stack when said extension is brought into operative relation with respect thereto and means for inducing a draft therethrough substantially as described.

5. Apparatus for creating draft through the furnaces of locomotive-boilers comprising in its construction a smoke-conduit extending any desired length, provided with a plurality of apertures at intervals, downwardly-extending tubes attached to the con= duit covering the apertures, sliding extension-tubes fitted to the fixed tubes to connect same with the locomotive smoke-stacks, valves for governing the flow of gases through. the said tubes and extensions the said valves being held in a closed position when the said extensions are out of action either valve being opened. through the instrumentality of the locomotive smoke-stack when the extension in which such valve is placed is brought into operative relation in respect thereto and an air-propeller placed in the smoke-conduit to induce a draft therethrough substantially as described.

6. Apparatus for creating draft through the furnaces of locomotive-boilers comprising in its construction a smoke-conduit provided with an inlet-aperture, a depending tube covering the aperture, a sliding extension on said tube to connect it with the top of a locomotive smoke-stack and a valve for governing the flow of gases through said tube and extension, said valve being held in a closed position when said extension is out of action but opened through the instrumentality of the locomotive smoke-stack when said extension is brought into operative relation with respect thereto and an airpropeller placed at the end of the smoke-conduit to induce a draft therethrough substantially as described.

7. In apparatus for creating draft through the furnaces of locomotive-boilers the combination with a smoke-conduit provided with apertures and means for inducing a draft therein, of tubes fixed to the conduit one covering each aperture, a sliding extension-tube fitted to each of the said fixed tubes, valves for governing the flow of gases through the said tubes and extensions the said valves being held in a closed position when the said extensions are out of action either valve being opened through the instrumentality of the locomotive smokestack when the extension in which such valve is placed is brought into operative relation in respect thereto and catches pivoted to the said extension-tubes to engage the top of the locomotive smoke-stack and hold the tube in contact therewith substantially as described.

8. In apparatus for creating draft through the furnaces of locomotive-boilers the com bination with a smoke-conduit A of any desired length, provided with a plurality of apertures placed at intervals, a plurality of depending tubes B aflixed to the conduit one covering each aperture, adjustable sliding extension-tubes B, one sliding inside each of the fixed tubes, valves C in the adjustable tubes, for governing the flow of gases through said tubes and extensions, catches G on the extension-tubes to hold such tubes in contact with the locomotive smoke-stack, an air-propeller K placed in the smoke-conduit to induce a draft through the apparatus and a chimney L to discharge the products of combustion substantially as described.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

GEORGE HUGHES.

Witnesses:

J. OWDEN OBRIEN, B. TATHAM I/VOODHEAD. 

